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Diffstat (limited to 'libSBRdec/src/sbr_rom.h')
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diff --git a/libSBRdec/src/sbr_rom.h b/libSBRdec/src/sbr_rom.h new file mode 100644 index 0000000..912f7e4 --- /dev/null +++ b/libSBRdec/src/sbr_rom.h @@ -0,0 +1,232 @@ + +/* ----------------------------------------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. + All rights reserved. + + 1. INTRODUCTION +The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements +the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. +This FDK AAC Codec software is intended to be used on a wide variety of Android devices. + +AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual +audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by +independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part +of the MPEG specifications. + +Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) +may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners +individually for the purpose of encoding or decoding bit streams in products that are compliant with +the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license +these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec +software may already be covered under those patent licenses when it is used for those licensed purposes only. + +Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, +are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional +applications information and documentation. + +2. COPYRIGHT LICENSE + +Redistribution and use in source and binary forms, with or without modification, are permitted without +payment of copyright license fees provided that you satisfy the following conditions: + +You must retain the complete text of this software license in redistributions of the FDK AAC Codec or +your modifications thereto in source code form. + +You must retain the complete text of this software license in the documentation and/or other materials +provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. +You must make available free of charge copies of the complete source code of the FDK AAC Codec and your +modifications thereto to recipients of copies in binary form. + +The name of Fraunhofer may not be used to endorse or promote products derived from this library without +prior written permission. + +You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec +software or your modifications thereto. + +Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software +and the date of any change. For modified versions of the FDK AAC Codec, the term +"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term +"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." + +3. NO PATENT LICENSE + +NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, +ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with +respect to this software. + +You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized +by appropriate patent licenses. + +4. DISCLAIMER + +This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors +"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties +of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, +including but not limited to procurement of substitute goods or services; loss of use, data, or profits, +or business interruption, however caused and on any theory of liability, whether in contract, strict +liability, or tort (including negligence), arising in any way out of the use of this software, even if +advised of the possibility of such damage. + +5. CONTACT INFORMATION + +Fraunhofer Institute for Integrated Circuits IIS +Attention: Audio and Multimedia Departments - FDK AAC LL +Am Wolfsmantel 33 +91058 Erlangen, Germany + +www.iis.fraunhofer.de/amm +amm-info@iis.fraunhofer.de +----------------------------------------------------------------------------------------------------------- */ + +/*! +\file +\brief Declaration of constant tables + +*/ +#ifndef __rom_H +#define __rom_H + +#include "sbrdecoder.h" +#include "env_extr.h" +#include "qmf.h" + +#define INV_INT_TABLE_SIZE 49 +#define SBR_NF_NO_RANDOM_VAL 512 /*!< Size of random number array for noise floor */ + +/* + Frequency scales +*/ +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_16[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_22[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_24[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_32[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_40[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_44[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_48[16]; + +/* + Low-Power-Profile Transposer +*/ +#define NUM_WHFACTOR_TABLE_ENTRIES 9 +extern const USHORT FDK_sbrDecoder_sbr_whFactorsIndex[NUM_WHFACTOR_TABLE_ENTRIES]; +extern const FIXP_DBL FDK_sbrDecoder_sbr_whFactorsTable[NUM_WHFACTOR_TABLE_ENTRIES][6]; + + + +/* + Envelope Adjustor +*/ +extern const FIXP_SGL FDK_sbrDecoder_sbr_limGains_m[4]; +extern const UCHAR FDK_sbrDecoder_sbr_limGains_e[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_limiterBandsPerOctaveDiv4[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_smoothFilter[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_randomPhase[SBR_NF_NO_RANDOM_VAL][2]; +extern const FIXP_SGL harmonicPhaseX [2][4]; + +/* + Envelope Extractor +*/ +extern const int FDK_sbrDecoder_envelopeTable_8 [8][5]; +extern const int FDK_sbrDecoder_envelopeTable_15 [15][6]; +extern const int FDK_sbrDecoder_envelopeTable_16 [16][6]; + +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info1_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info2_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info4_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info8_15; + +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info1_16; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info2_16; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info4_16; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info8_16; + +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel10T[120][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel10F[120][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance10T[48][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance10F[48][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel11T[62][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel11F[62][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance11T[24][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance11F[24][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_NoiseLevel11T[62][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_NoiseBalance11T[24][2]; + + +/* + Parametric stereo +*/ + + +extern const FIXP_DBL decayScaleFactTable[NO_QMF_CHANNELS]; + +/* FIX_BORDER can have 0, 1, 2, 4 envelops */ +extern const UCHAR FDK_sbrDecoder_aFixNoEnvDecode[4]; + +/* IID & ICC Huffman codebooks */ +extern const SCHAR aBookPsIidTimeDecode[28][2]; +extern const SCHAR aBookPsIidFreqDecode[28][2]; +extern const SCHAR aBookPsIccTimeDecode[14][2]; +extern const SCHAR aBookPsIccFreqDecode[14][2]; + +/* IID-fine Huffman codebooks */ + +extern const SCHAR aBookPsIidFineTimeDecode[60][2]; +extern const SCHAR aBookPsIidFineFreqDecode[60][2]; + +/* the values of the following 3 tables are shiftet right by 1 ! */ +extern const FIXP_DBL ScaleFactors[NO_IID_LEVELS]; +extern const FIXP_DBL ScaleFactorsFine[NO_IID_LEVELS_FINE]; +extern const FIXP_DBL Alphas[NO_ICC_LEVELS]; + +#if defined(ARCH_PREFER_MULT_32x16) +extern const FIXP_SGL aAllpassLinkDecaySer[NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_SGL aaFractDelayPhaseFactorReQmf[NO_QMF_CHANNELS]; +extern const FIXP_SGL aaFractDelayPhaseFactorImQmf[NO_QMF_CHANNELS]; +extern const FIXP_SGL aaFractDelayPhaseFactorReSubQmf20[NO_SUB_QMF_CHANNELS]; +extern const FIXP_SGL aaFractDelayPhaseFactorImSubQmf20[NO_SUB_QMF_CHANNELS]; + +extern const FIXP_SGL aaFractDelayPhaseFactorSerReQmf[NO_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_SGL aaFractDelayPhaseFactorSerImQmf[NO_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_SGL aaFractDelayPhaseFactorSerReSubQmf20[NO_SUB_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_SGL aaFractDelayPhaseFactorSerImSubQmf20[NO_SUB_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; + +extern const FIXP_SGL p8_13_20[13]; +extern const FIXP_SGL p2_13_20[13]; + +#else +extern const FIXP_DBL aAllpassLinkDecaySer[NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_DBL aaFractDelayPhaseFactorReQmf[NO_QMF_CHANNELS]; +extern const FIXP_DBL aaFractDelayPhaseFactorImQmf[NO_QMF_CHANNELS]; +extern const FIXP_DBL aaFractDelayPhaseFactorReSubQmf20[NO_SUB_QMF_CHANNELS]; +extern const FIXP_DBL aaFractDelayPhaseFactorImSubQmf20[NO_SUB_QMF_CHANNELS]; + +extern const FIXP_DBL aaFractDelayPhaseFactorSerReQmf[NO_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_DBL aaFractDelayPhaseFactorSerImQmf[NO_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_DBL aaFractDelayPhaseFactorSerReSubQmf20[NO_SUB_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; +extern const FIXP_DBL aaFractDelayPhaseFactorSerImSubQmf20[NO_SUB_QMF_CHANNELS][NO_SERIAL_ALLPASS_LINKS]; + +extern const FIXP_DBL p8_13_20[13]; +extern const FIXP_DBL p2_13_20[13]; +#endif + +extern const UCHAR aAllpassLinkDelaySer[3]; +extern const UCHAR delayIndexQmf[NO_QMF_CHANNELS]; +extern const UCHAR groupBorders20[NO_IID_GROUPS + 1]; +extern const UCHAR groupBorders34[NO_IID_GROUPS_HI_RES + 1]; +extern const UCHAR bins2groupMap20[NO_IID_GROUPS]; +extern const UCHAR quantizedIIDs[NO_IID_STEPS]; +extern const UCHAR quantizedIIDsFine[NO_IID_STEPS_FINE]; +extern const UCHAR FDK_sbrDecoder_aNoIidBins[3]; +extern const UCHAR FDK_sbrDecoder_aNoIccBins[3]; + + +/* Lookup tables for some arithmetic functions */ + +#define INV_TABLE_BITS 8 +#define INV_TABLE_SIZE (1<<INV_TABLE_BITS) +extern const FIXP_SGL FDK_sbrDecoder_invTable[INV_TABLE_SIZE]; + +#endif // __rom_H |